Communications: radio wave antennas – Antennas – Slot type
Reexamination Certificate
2005-06-17
2008-03-11
Wimer, Michael C. (Department: 2821)
Communications: radio wave antennas
Antennas
Slot type
Reexamination Certificate
active
07342550
ABSTRACT:
The antenna includes a metallic enclosure having a height dimension. At least one slotted opening is formed along the metallic enclosure. Each slotted opening has a slotted opening length and a slotted opening width. The slotted opening length is at least twice as long as the slotted opening width is wide. The slotted opening width is less than one wavelength wide and the slotted opening width is within a half wavelength of the height dimension. At least one feed is provided at least partially within the enclosure.
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Hall, et al., “Performance Enhancements for Aperature Coupled Microstrip Antennas”, IEEE Antennas and Propagation Society International Symposium, IEEE 1992. pp. 1040-1043.
Sullivan, P.L. et al., “Analysis of Aperature Coupled Patch Antenna”, 1985 IEEE/AP-S/URSI International Symposium, Vancouver, Canada, Elliott, Antenna Theory and Design, Chapter 3.5, Waveguide-Fed Slots, Prentice-Hall, Inc. 1981, pp. 88-99.
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King, H.E., et al., “A Shallow Ridged-Cavity Crossed-Slot Antenna for the 240- to 400-MHz Frequency Range”, IEEE Transactions on Antennas and Propagation, Sep. 1975, pp. 687-689.
Petropoulos Athanasios
Sanford John
Cushcraft Corporation
Wimer Michael C.
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